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Comparison of dry reforming of methane in low temperature hybrid plasma-catalytic corona with thermal catalytic reactor over Ni/γ-Al 2O 3

Aziznia, A ; Sharif University of Technology | 2012

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  1. Type of Document: Article
  2. DOI: 10.1016/S1003-9953(11)60392-7
  3. Publisher: 2012
  4. Abstract:
  5. In the current study, the hybrid effect of a corona discharge and γ-alumina supported Ni catalysts in CO 2 reforming of methane is investigated. The study includes both purely catalytic operation in the temperature range of 923-1023 K, and hybrid catalytic-plasma operation of DC corona discharge reactor at room temperature and ambient pressure. The effect of feed flow rate, discharge power and Ni/γ-Al 2O 3 catalysts are studied. When CH 4/CO 2 ratio in the feed is 1/2, the syngas of low H 2/CO ratio at about 0.56 is obtained, which is a potential feedstock for synthesis of liquid hydrocarbons. Although Ni catalyst is only active above 573 K, presence of Ni catalysts in the cold corona plasma reactor (T≤523 K) shows promising increase in the conversions of methane and carbon dioxide. When Ni catalysts are used in the plasma reaction, H 2/CO ratios in the products are slightly modified, selectivity to CO increases whereas fewer by-products such as hydrocarbons and oxygenates are formed
  6. Keywords:
  7. Dry reforming of methane ; Hybrid catalyst plasma ; Ni/γ-Al 2O 3 ; Synthesis gas ; Alumina-supported ; Ambient pressures ; Catalytic reactor ; Corona discharges ; Corona plasmas ; DC corona discharge ; Discharge power ; Feed flow rate ; Hybrid catalysts ; Liquid hydrocarbons ; Low temperatures ; Ni catalysts ; Plasma reactions ; Potential feedstock ; Reforming of methane ; Room temperature ; Syn-gas ; Temperature range ; Alumina ; Aluminum ; Carbon dioxide ; Catalyst selectivity ; Electric corona ; Methane ; Plasma applications ; Plasmas ; Electric discharges
  8. Source: Journal of Natural Gas Chemistry ; Volume 21, Issue 4 , 2012 , Pages 466-475 ; 10039953 (ISSN)
  9. URL: http://www.sciencedirect.com/science/article/pii/S1003995311603927